These solutions are similar. Take action against them.
What is the point of posting this in the forum? Mail codechef regarding this and stop spamming the forum.
You should first wait for the plagiarism test to finish running. If these codes are not detected automatically you should probably email Codechef about it.
Hey Rajat, We will check all the submissions from JUNE15 for plagiarism and will take necessary action against the users involved in any such practice. Thanks for reporting them to us.